Malicious PDF — malware analysis report

Static analysis result for SHA-256 3fcbe6c97a715fc3…

MALICIOUS

PDF

43.6 KB Created: 2021-05-15 16:31:33 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7)
MD5: 38e279224b62f4a92d6117000e39ad4c SHA-1: 6c4efbc7a8e32984eae1c8c77b557085af3f4804 SHA-256: 3fcbe6c97a715fc3c42770271768b04c2365b838528bca4f67f0a014892219c7
62 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The document contains a clear lure related to game hacking, directing users to a suspicious URL. The ML classifier strongly flagged this PDF as malicious, and the presence of embedded URLs and a call-to-action button reinforces the malicious intent. While no scripts were directly extracted, the overall structure and content suggest a phishing or malware delivery attempt.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9969

Heuristics 4

  • Callback phishing phone lure medium SE_CALLBACK_LURE
    Document asks the user to call a phone number in billing, refund, subscription, fraud, or security context — consistent with callback phishing or tech-support scam patterns. Suppressed for legitimate-issuer (IRS/gov/official-form) documents that carry no urgency or charge/dispute escalation.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.xyz/app/431946152/how-to-hack-roblox-accounts-on-phone-game-hack
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/codes-to-get-free-robux_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/best-hack-for-coin-master-2021_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/500-free-spins-coin-master_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/can-i-get-free-robux_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/free-robux-codes-2021_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/give-me-robux-now_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/https-iosgodscom-topic-20214coinmasterhack_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/minecraft-free-version-pc_GM479516143.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/free-robux-hack-no-human-verification-or-survey_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/coin-master-free-mighty-lion-card_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/coin-master-free-spin-ml_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-without-paying_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/coin-master-hack-com_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/free-robux-no-verification-2021_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/free-spins-coin-master_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/wahoogaming-co-free-robux_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/coin-master-free-spins-whatsapp-link_GM406889139.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-no-human-verification-2021_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/free-roblox-clothes_GM431946152.pdf
    • https://elearning.mankotasolok.sch.id/__statics/gudangsoal/files/roblox-free-pants_GM431946152.pdf
    • http://en.wikipedia.org/wiki/MIT_License

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_003_off00004dd6.bin
93aaf016adb20b96dab9ddf29d20c1f55d0300ba284523c4a8763f3b3d956035		 decompressed-pdf-stream PDF FlateDecoded stream at offset 0x4DD6 25000 bytes
font_01_sfnt_off00008663.bin
92714a2af62378a1839a0ba08facac9787f9fdc52ffb1ff0f3d5734c2bdfa821		 pdf-font-stream PDF embedded font (sfnt) at offset 0x8663 18908 bytes

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